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Finding the Fourth Proportional to 63,990.92, 95,941.20 and 21,850.76

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Solution

The fourth proportional to 63,990.92, 95,941.20 and 21,850.76 is: 32,760.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,990.92 : 95,941.20 = 21,850.76 : x
  2. Step 2: Convert to fraction form
    63,990.92/95,941.20 = 21,850.76/x
  3. Step 3: Cross multiply
    63,990.92x = 95,941.20 × 21,850.76
  4. Step 4: Simplify right side
    63,990.92x = 2,096,388,135.31
  5. Step 5: Solve for x
    x = 2,096,388,135.31/63,990.92
  6. Step 6: Final answer
    x = 32,760.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.